Angle-bending machine.



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ANGLE BENDlN-G MACHINE. (Application filed June 28, 1902.)

No. 7|6,005. Patented Dec. .I6, 1902.

no Model.)

L Wimessese Ewan-6o r7 Jt nqj UNITED STATES PATENT OFFICE.

IVY HANCOCK DILLON, OF DALLAS, TEXAS, ASSIGNOR TO DILLON MACHINE COMPANY, OF DALLAS, TEXAS, A CORPORATION OF TEXAS.

ANGLE-BENDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 716,005, dated December 16, 1902.

Application filed June 23, 1902- Serial No. 112,801. (No model.)

To all whom it may concern.-

Be it known that I, IVY HANCOCK DILLON, a citizen of the United States, residing at Dallas, Texas, have invented a new and Improved Angie-Bending Machine, of which the following is a specification.

This invention relates to a machinefor bending or curving angle or channel iron bars or other metal; and the object is to construct a IO machine which is simple and strong and light and efficient for curving metallic bars and which can be manufactured at small cost.

Other objects and advantages will be fully set forth in the following description, and the invention. will be more particularly pointed out in the claims.

Reference is had to the accompanying drawings, which form a part of this application and specification.

Figure 1 is a top plan View of the machine in detail. Fig. 2 is a side elevation of the same, one leg of the platform being broken away. Fig. 3 is a broken vertical section showing sections of the driving-gear, of the feed-'rolls,and thegearingfordrivingthefeedrolls.

Similar characters of reference are used to indicate the same parts throughout the several views.

0 The machine is provided with a platform or table 1, and the platform is provided with suitable legs 2. The main driving-shaft 3 is journaled in the platform 1, and a worm-gear 4 is rigidly mounted on this shaft. Gear 4 is 5 driven by a worm-gear 5, which is rigidly mounted on shaft 6, which is provided with suitable bearings and which is driven by the main drive wheel or pulley 7. The. platform 1 has bosses 8 formed on the under sidethereof to make the bearings for the feed-roller shafts steady. One feed-roller, 9, is rigidly mounted on shaft 3 and the other feed-roller, 10, is loosely mounted on shaft. 11, which is rigidly mounted in the platform 1. The feed-rollers 9 and 10 are provided with cog-gearing 12 and 13, which are integral, respectively, with the rollers 9 and 10. The cog-wheel l2 drives the cog-wheel 13. Thetwo rollers 9 and 10, and consequently the gearing 12 and 13, are held in their proper geared relation or at the proper distance apart by the platform 1 and the cap 14.

Provision is made for difierent-sized bars of metal,as follows: An eccentric 15 is formed on the shaft 11, and the roller 10 and the gearwheel 13 are mounted on thiseccentric, and the teeth of the gearing 12 and 13 are made long enough or deep enough to allow adjustments of the rollers 9and 10, the wheel 12 driving the wheel 13 when the wheel 13 is 6ov placed farther from the wheel 12, as well as when the wheel 13 is closer to the wheel 12. The bar of iron passes between the rollers 9 and 10. The passage 16 for the bars of metal is shown in Fig. 3. The cap 1 1 is provided with a set-screw 17, which holds the shaft 11 rigidly in place, the shaft 11 having an annular groove 18 therein for the set-screw 17. The passage 16 is made larger or smaller by loosening the screw 17 and setting the shaft 11, with the eccentric 15, more or less toward the shaft 3 and then tightening the screw 17.

The principal bending-roller 19 is mounted in adjustable slide-bearing 20, and an adj ustable slide-bearing 21 is provided for the auxiliary bending-roller 22. The slide-bearings 20 and 21 are held in place by the frog 23, which is bolted to the platform 1 by means of bolts 24. The bearings 20 and 21 have flat extensions 25 of their bases, and the frog 23 has grooves for these extensions, whereby the bearings 20 and 21 may be set at any practical adjustment for making the desired curve in a metal bar. The bearings 20 and 21 are held at any adjustment by the set-screws 26 and 27. Thefrog 23 has elevated portions or shoulders 28 and 29, which are screw-threaded for the screws 26 and 27, respectively. The screws 26 and 27 press against the shoulders of the bearings 20 and 21. Set-screws 0. 30 may be mounted in the shoulders 28 and 29 to press on the bases 25 to aid in bolding the bearings 20 and 21 steady. The bar of metal to be bent is inserted between the rollers 9 and 10 from the direction of the 5 auxiliary roller 22 and is fed by the rollers 9 and 10 toward the roller 19, by which the principal bending is done, the roller 22 aiding to prevent too great strain on one side of the feed-rollers 9 and 10. In this manner there Ico is less danger of straining the feed-rollers out of position. The bending is done by means of the mechanism already described. The curved bars of metal after leaving the roller 19 would frequently warp or be distorted or assume irregular shapesthat is, they would bend up from the platform. I have remedied this defect in the machine by the guide-rollers 31 and 32, which are mounted in a bearing 33, which is mounted on and bolted to the platform 1 by means of bolts 34. A series of holes may be made in the platform 1, so that this bearing 33 may be located at different adjustments for bars of different curvature. The flanged rollers 19 and 22 are adjusted for bars of different curvature by means of the set-screws 26 and 27. The roller 31 is made adjustable in the bearing 33, so that this roller may be set at different distances from the roller 32 to meet the requirement of different sizes of metal bars.

Various changes may he made in the assembling of the various parts of this machine without departing from my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. Au angle-bending machine comprising a suitable platform,a pair of feed-rollers mounted on said platform and suitable gearing for said rollers, said rollers being eccentrically mounted relative to each other, suitable bending-rollers to cooperate with saidfeed-rollers, and means for driving said machine.

2. An angle-bending machine comprisinga suitable platform,a pair of feed-rollers mounted on said platform, gearing for said rollers, suitable bending-rollers, means foradjusting said feed-rollers relative to each other consisting of a shaft having an eccentric integral therewith on which one of said feed-rollers with its gear-wheel is mounted and means for making said shaft stationary at any adj ustment, and means for driving said machine.

3. An angle-bending machine comprising a consisting of an eccentric on said stationary shaft, and suitable bending-rollers.

4. An angle-bending machine comprising a suitable platform,a pair of feed-rollers mounted on said platform, a rotating shaft for one of said rollers and a stationary shaft for the other'roller means for driving said rotating shaft, each of said rollers having a cog-wheel integral therewith whereby the cog-wheel on said rotating shaft drives the cog-wheel on said stationary shaft, means for adjusting said feed-rollers relative to each other, the teeth of said cog-wheels being of sufficient depth to drive said rollers at various adjustments, and suitable bending-rollers in operative relation to said feed-rollers.

5. An angle-bending machine comprising a suitable platform,a pair of feed-rollers mounted on said platform, a rotating shaft for one of said rollers and a stationary shaft for the other roller, means for driving said rotating roller, each of said rollers having a cog-wheel integral therewith whereby the cog-wheel on, said rotating shaft drives the cog-wheel on said stationary shaft, said stationary shaft having an eccentric whereby the cog-wheel and the roller thereon may be adjusted relative to the roller and cog-wheel on said rotating shaft, and suitable bending-rollers.

In testimony whereof I set my hand, in the presence of two witnesses, this 3d day of June,

IVY HANCOCK DILLON. Witnesses:

GEO. P. DUNLAP, G. D. BRANTLEY. 

